2024 head-to-head · Two-Seater

2024 Mercedes-Benz SL-Class Hybrid vs Porsche 718

MPG, range and what each one really costs you to fuel, from official EPA ratings and recalculated with your own gas and electricity prices.

Swap sides
✓ Cheaper to run
$2,693/ year to fuel
22 MPG

RWD · 2.0L 4-cyl turbo · 9-speed automatic · 22 MPG

✓ Cheaper to run
$2,469/ year to fuel
24 MPG

The 2024 Porsche 718 is the cheaper one to run. Driving 15,000 miles a year with $3.95/gal premium gas, it costs about $2,469 a year to fuel (24 MPG), versus $2,693 for the 2024 Mercedes-Benz SL-Class Hybrid (22 MPG). That's roughly $224 a year, or about $1,122 over five years.

Your numbers

Change these to match your driving and local prices. Every figure and chart on this page updates.

Fuel cost over 10 years

  • Mercedes-Benz SL-Class Hybrid
  • Porsche 718

Side by side

Mercedes-Benz SL-Class HybridPorsche 718
$2,693 Your annual fuel cost $2,469
22 MPG Combined efficiency 24 MPG
20 MPG City 21 MPG
27 MPG Highway 27 MPG
398 g/mi Tailpipe CO₂ (g/mi) 375 g/mi
5/10 EPA fuel economy score 5/10
5/10 EPA greenhouse gas score 5/10
Hybrid Powertrain Gas
Premium gasoline Fuel Premium gasoline
2.0L 4-cyl turbo Engine / motor 2.0L 4-cyl turbo
9-speed automatic Transmission 7-speed dual-clutch
RWD Drivetrain RWD

✓ marks the better value. EPA scores run 1–10 (10 is best). Volumes come from the EPA interior volume index and aren't published for every body style.

Mercedes-Benz SL-Class Hybrid vs Porsche 718 across model years

  • Mercedes-Benz SL-Class Hybrid
  • Porsche 718

Annual fuel cost of the most efficient configuration of each model year, at your prices. Click a point to open that year.

How they differ

Among 20 2024 two-seaters, the Mercedes-Benz SL-Class Hybrid ranks 7th and the Porsche 718 6th for lowest fuel cost.

The powertrains differ: the Mercedes-Benz SL-Class Hybrid is a full hybrid, while the Porsche 718 is a conventional gas model.

Frequently asked questions

Which is more fuel-efficient, the 2024 Mercedes-Benz SL-Class Hybrid or the 2024 Porsche 718?

Measured by cost to drive, the Porsche 718. The Mercedes-Benz SL-Class Hybrid is rated 22 MPG combined and the Porsche 718 24 MPG (EPA, most efficient configuration of each).

How much does it cost to fuel the 2024 Mercedes-Benz SL-Class Hybrid vs. the Porsche 718 per year?

At 15,000 miles a year with $3.95/gal premium gas, about $2,693 for the Mercedes-Benz SL-Class Hybrid and $2,469 for the Porsche 718.

Mercedes-Benz SL-Class Hybrid vs Porsche 718 in other years

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